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Get noticed

Alpine's BassLine subwoofers will add some serious rumble to your vehicle's sound system. You'll really feel the impact of bass lines and drum beats, so you can get into your music like you never have before. These subs also live up to Alpine's reputation for making subs that bass lovers want, but they don't cost so much that you end up actually living in your car.

The tough steel frame helps to keep your bass punchy and accurate.

Built Alpine tough

Alpine's BassLine SWA-10S4 10” sub comes equipped with a rigid polypropylene/mica cone that won't flex under high volumes and cause distortion, while its poly-foam surround will last for years to come. The tough steel frame offers the stability you need to keep the bottom tight during intense bass sessions. This sub handles up to 250 watts RMS and its 4-ohm impedance makes it a great match for most amplifiers.

To drive this single subwoofer, we recommend a mono amplifier rated between 200 and 375 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

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Great sale. Great product!

Written By R. L. Sr., Courtland, VA on Monday, February 16, 2015

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

As far as subs are concerned, I have to admit that I'm far from being an expert! That is why I went to Crutchfield. I was attracted by the price special that was being offered at the time of purchase. I am glad that I decided to buy the Alpine's. They sound Great! I wanted solid but not overwhelming bass and that is what I have. I am happy! By the way, they were a suggestion from a rep at Crutchfield. Thanks fellas!

Pros:Solid sound, clean look, and confidence with the Alpine name for long lasting usage.

Cons:Honestly, just a tad bit concerned about the possible life of the speakers, but I am 44 years old, so I will not be pushing them hard at all.

Bass line 10 sub

This is a great 10 inch Sub especially for the price it hits hard and sounds way better than what you pay for. Granted it's no JL audio or Alpine Type R but gets the job done kind off reminds me of the old Kicker comps from the late 80s early nineties. They don't need a ton of power and hit hard. I haven't pushed them to hard but only have alpine mrp f300 bridged pushing 150 watts to each speaker but enough bass for me in my ex cab chevy s-10 pioneer cde 8600 HU kenwood p709ps components polk dxi461 4x6 in dash running off alpine mrx f35.

Pros:2 Alpine 10 subs buy one the other half price and free shipping. Two good 10 inch subs under $100 made by a quality trusted brand. No Brainer.

Great for the price!

Not a 5 star sub woofer. However, for the price it's the best one to get! Installed on my 03 Mini Cooper. More than enough for the size of the car.

Hooked up with the Kenwood Excelon X500-1Mono subwoofer amplifier, which puts out 300 watts RMS x 1 at 4 ohms. So I'm definitely pushing the limits of the sub woofer, and it's handling it really good. Sound quality is good even at higher volumes.

amazing 10's under a $100

i chose these 10's over my usual brand cause my brands was out of stock an these alpines were at a nice price and reviews were great too.got them 2 days after orders date installed them and they hit just as hard and sound like any high priced Sub on the market....2 thumbs up!!!!

Pros:Price,build quality everything on them are high quality.
hard hitting bass-lines

Decent Sub

I've had this for about 2 weeks now and it seems to be a decent sub. I have 2 running at 250 watts each in a sealed SO box. Good quality sound and decent thump, but if you're looking for something to make your heart skip a few beats, this isn't for you. The swa's provide nice, clean lows but I think it may be better in a vented enclosure.

Alpine SWA-10S4

You get what you pay for. Sounds great for an inexpensive sub. Bought some Alpine 6 1/2s and got the buy one get one half off deal. Sounds good but also I have a Kenwood 10 that is similar in price and sounds better.

Pros:Fantastic Price, booms at low frequencies.

Cons:Muddy at higher frequencies. A great sub for dance and hip hop but not so good for rock.

BASS LINE

these subwoofer's are great. i just got them hooked up a couple days ago, got them tuned today and they sound amazing. i bought to alpine type R 12"s when i has my suburban and fell in love with them. now i have s chevy sonic and couldnt have that much bass, so i built a new system and decided to try Alpine again. GREAT CHOICE! i would recommend these to anyone who likes a good amount of bass in a small space and sound good while doing so.

Pros:sound quality, performance (I'm running 500 watts RMS a piece, and they handle it like a champ)!, they look perfect in my car, and fit perfect in my car.

Cons:i don't have any cons. you get a great subwoofer for a great price.

Alpine SWA-10S4

These speakers put out a lot of punch for the price. I installed these speakers in my 2002 gmc Sierra ext. cab. I am very pleased with them I'm running a 600 x1 alpine mono amp and a cde-133bt alpine head unit.

Alpine SWA-10S4 Subwoofer review

Sounds good for a 10" subwoofer, but the design should have been more durable. Sturdy cone covers should have been included with longer, double coated screws. Having to buy a separate Alpine subwoofer control for the dash area and the cone cover makes this not the greatest deal. I would suggest offering quality made universal subwoofer control knobs at discounted prices or include them as a package deal when buying a subwoofer.

Wooow!

I just purchased these subs...WOOOW!! They are worth the purchase,very clean bass that rattles everything in your ride. I'm pushing them with the Alpine MRV-M500 & they act like they want more power!! Cheap in price but high in quality, I recommend these to anyone that want some serious bass that doesn't take up a lot of space...."LET THE ALPINES BUMP!!!!!!!!" I think I need to check to see if I've got some bolts that need tightened on my 06 GMC Sierra Ext Cab.......LOL!!!!!!!

Amazing!

Written By Dan, Maine on Saturday, November 09, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

I was pretty skeptical of these subs at first. I didn't find anything on YouTube or anywhere else about these and they were also cheap and fairly low powered at 250 rms. I slapped two of these in a sealed enclosure in the back of my Jeep and was I surprised when they first hit. I've had them for about three months and I haven't been gentle with them. These things shake the entire Jeep. The roof flexes, the rear windows flex, and mirrors are completely useless when these things are thumping. All in all, these are an amazing deal.

Great Price and Value

Ordered 2 of these and have them in a sealed box powered by a alpine mrp-m1000 amp running @ 2 ohms and these subs rock. Sounds clean and looks great. For the money you can't go wrong. I ordered 2 more for my other car after hearing them.

Alpine SWA-10S4

GREAT entry level sub... hits hard without distorsion using inside a Bassworx ported box- that is about .1 foot shy of minimum factory recommendations but still sounded great during first song tuning of The Eagles- "Hotel California". Great Buy!

Pros:Great Entry Level Sub.

Cons:1) A mounting template from Alpine would have been nice to ease the installation. 2) WHY does an Alpine grill cost almost as much as the Sub?!?!

Alpine SWA-10S4

I've had these for about a week and I'm completely impressed. I'm running them with a Alpine MRP-M1000 with the gain at about 3/4 and these subs handle it just fine. 2 10 inch subs in a custom Silverado box under back seat .80 cu ft per side non-ported. These things pound!

Pros:Cost effective, quality built, great for smaller enclosures as well as larger ported ones.

Excellent Sub!

Written By Blake H, Placentia, California on Monday, June 17, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

Just installed 2 of these 10" Bassline subs in my 2001 Ford Escape along with pioneer speakers, 1100W Sony Amp and a Pioneer head unit. This setup sounds amazing. These subs have the power I needed for my car, they shake my whole car when I play electro and the bass is very clear, not distorted at all. I definitely think these are a good buy for anyone looking to add a ton of bass to their car without breaking the bank.

let the alpines play

Written By RedLithium, chi-town on Monday, April 15, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

Excellent sub ...got it in a 1.cf sealed box in my 02' Silverado ext cab ...on a jl/250/1 mono sounds excellent still pushing air at 10hz ..suggest you look at the cone its laddered down..wasn't crazy bout the ripples i like the idea of a a nice round symetrical cone but i stuck some hard base too it.Then tortured it with base tests .I don't care what shape it is anymore its bad a** ...buy this sub better get some extra dynamat this sub will take the door panels off and spit on your 6-and-halves

Pros:Good price ...hit hard and and low .but not on your wallet ..this is not a value speaker..its purely engineering genius /good material

A lot of loud, not a lot of green.

I walked by this subwoofer the other day in our lab and decided I'd try it out in my Jeep. It's enclosed in the Sound Ordnance BB10-1V vented box. Currently, the sub I own and listen to in my Jeep is another Alpine. For space concerns, I bought the SBR-S83V which is also a vented enclosure, but has a Type-R 8" woofer.

This Bass Line woofer is considerably louder even though being a single four ohm voice coil woofer, it draws only roughly half the power from my JL Audio amp.

The bottom line, after a week of listening, is this woofer costs very little, requires little power to get it moving, and in a medium sized vented enclosure is very loud!

I like that my smaller 8" sub and box takes up a lot less space so I'll be putting it back in. If your space isn't so limited, like the Jeep, then you'll love this woofer.